The big hoist that raises and lowers tons of drill pipe and other tools out of and into the hole is a vital piece of equipment in the hoisting system. This video explains that while the drawworks is a large, rugged, and dependable device, the rig crew must properly maintain it in order for it to provide reliable day-in-and-day-out service. Besides covering conventional DC drawworks, the video also shows the latest AC drawworks. Produced in cooperation with Transocean. 2001, 23 minutes, video production.

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